Internal model controller based PID with fractional filter design for a nonlinear process
| Autor: | Mohamed Shuaib Y, P R Hemavathy, S. K. Lakshmanaprabu |
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| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Operating point General Computer Science Computer science 020209 energy Hopper tank Internal model Time constant PID controller 02 engineering and technology Dead time Nonlinear system Filter design 020901 industrial engineering & automation Fractional filter Control theory Filter (video) 0202 electrical engineering electronic engineering information engineering IMC based PID Electrical and Electronic Engineering |
| Popis: | In this paper, an Internal model Controller (IMC) based PID with fractional filter for a first order plus time delay process is proposed. The structure of the controller has two parts, one is integer PID controller part cascaded with fractional filter. The proposed controller has two tuning factors λ, filter time constant and a, fractional order of the filter. In this work, the two factors are decided in order to obtain low Integral Time Absolute Error (ITAE). The effectiveness of the proposed controller is studied by considering a non linear (hopper tank) process. The experimental set up is fabricated in the laboratory and then data driven model is developed from the experimental data. The non linear process model is linearised using piecewise linearization and two linear regions are obtained. At each operating point, linear first order plus dead time model is obtained and the controller is designed for the same. To show the practical applicability, the proposed controller is implemented for the proposed experimental laboratory prototype. |
| Databáze: | OpenAIRE |
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